Called "Occupy Portland, not Afghanistan," the two-day event kicks off at Shemanski Park in the South Park Blocks at noon. About an hour later, organizers will lead demonstrators on a march through downtown. The route is expected to go by Chapman and Lownsdale squares, where hundreds of Occupy Portland activists camped for 38 days last year as a visible protest to economic policies that they say have punished 99 percent of the population while concentrating wealth in the hands of a few.

An after-party with music is scheduled to follow the march. On Sunday, the public is invited to attend teach-ins at Portland Community College's Cascade campus from 12 noon to 5 p.m. Organizers request donations of non-perishable food for Right 2 Dream Too and Sisters of the Road.

Peace groups and Occupy Portland are sponsoring the event, which also marks the 11th anniversary of the U.S. invasion of Afghanistan. Dozens of other groups have endorsed the event and organizers hope to draw the thousand-plus crowds that marked previous Occupy Portland demonstrations.